CLARKE.] 
CLAYS AND SOILS. 
ALABAMA, MISSISSIPPI. 
857 
A. Kaolin, Greenville, Alabama. Contains about 40 per cent of 
kaolin, with fragments of quartz, feldspar, and mica. Analysis by 
T. M. Chatard, record, No. L14S. 
B. Residual clay, from decay of Knox dolomite, Morrisville, Ala- 
bama. Described by Russell in Bull. 52. Analysis by W. F. Hille- 
brand, record, No. 797. See also analysis of the dolomite. 
C. Loess, from Vicksburg, Mississippi. Described by Chamberlin 
and Salisbury, 6th Ann., p. 282. Analysis by R. B. Riggs, record 
No. 294. 
D. Stoneware clay, Holly Springs, Mississippi. Analysis by E. C. 
Sullivan, record No. 2105. Alkalies not separated, calculated as K 2 O. 
§0 2 
|] 2 3 
Fe 2 <>, 
Fe< ) 
Mg() 
taO 
Na 2 ( ) 
L< ) 
II,()atllO° 
II,<>, ign... 
BO, 
69. 84 
19.91 
.90 
MnO 
CO,.. 
C, organic. 
B0 3 
CI 
.28 
.07 
.21 
2.14 
.06 
6.72 
trace 
100. 13 
55. 42 
22.17 
8.30 
trace 
1.45 
.15 
.17 
2.32 
2.10 
7.76 
99.84 
60. 69 
7 95 
2.61 
.67 
4.56 
8.96 
1.17 
1.08 
1.14 
.52 
.13 
.12 
9.63 
.19 
.12 
.08 
99.62 
64.77 
22.07 
1.55 
. 33 
.09 
1.36 
8.69 
1.13 
trace 
99.99 
